Calcicole

Of plants which thrive in a soil containing free calcium compounds

Calcifuge

Of plant which will not tolerate a soil containing free calcium compounds

Callus

New tissue which forms over a wound

Calyx

Outer part of a flower, the sepals

Cambium

The layer of actively dividing cells between bark and wood

Capsule

Dry, several-celled pod

Catkin

Normally dense spike or spike-like raceme of tiny, scaly-bracted flowers or fruits

Central leader

The clearly defined single, dominant stem at the top of the tree

Ciliate

Fringed with hairs

Cladode

Flattened leaf-like stem

Collar

The position of the main stem or stems of a plant which coincides with the surface level of the soil

Columnar

Tall and cylindrical or tapering

Compound

Composed of two or more similar parts

Conical

Cone-shaped

Coniferous

Cone bearing (mainly evergreen)

Container grown

Having been individually grown from propagation in a container.

Containerised

Having been transferred at some stage of development (usually prior to transplanting) into a container for purposes of sale, transport or decorative effect

Cordate

Shaped like a heart

Corolla

Inner, normally conspicuous, part of a flower, the petals

Corymb

Flat-topped or dome-shaped flowerhead with the outer flowers opening first

Cotyledon stage

The stage of growth of a seedling at which seed leaves have developed above ground

Crenate

Toothed with shallow, rounded teeth, scalloped

Crown

The base of an herbaceous perennial where stem and root meet and from which fresh shoots and roots arise

Cyme

Flat-topped or domed-shaped flowerhead with the inner flowers opening first